#!/usr/bin/env bash
#
# Converge every node in nodes/ with a runlist override (-o).
#
# Usage:
#   ./converge_all.sh "recipe[kosmos-base::users]"
#
# Port selection per node:
#   - nodes WITH a normal.vm_host attribute (KVM guests):  port 22
#   - nodes WITHOUT a normal.vm_host attribute (bare metal): port 2222
#
# Runs sequentially and aborts on the first failure (set -euo pipefail).

set -euo pipefail

if [[ $# -ne 1 ]]; then
  echo "Usage: $0 '<runlist override>'" >&2
  echo "  e.g. $0 \"recipe[kosmos-base::users]\"" >&2
  exit 1
fi

RUNLIST="$1"

shopt -s nullglob
nodes=( nodes/*.json )

if [[ ${#nodes[@]} -eq 0 ]]; then
  echo "No nodes found in nodes/" >&2
  exit 1
fi

total=${#nodes[@]}
i=0

for f in "${nodes[@]}"; do
  i=$((i + 1))

  IFS=$'\x1f' read -r node_name vm_host knife_host < <(python3 -c '
import json, sys
d = json.load(open(sys.argv[1]))
print("\x1f".join([
    d.get("name", "") or "",
    d.get("normal", {}).get("vm_host", "") or "",
    d.get("normal", {}).get("knife_zero", {}).get("host", "") or "",
]))
' "$f")

  if [[ -z "$node_name" ]]; then
    echo "[$i/$total] $f: could not read node name, skipping" >&2
    exit 1
  fi

  if [[ -z "$knife_host" ]]; then
    echo "[$i/$total] $node_name: no knife_zero.host set, skipping" >&2
    exit 1
  fi

  if [[ -n "$vm_host" ]]; then
    port=22
    label="vm_host=${vm_host}"
  else
    port=2222
    label="bare metal"
  fi

  echo "[$i/$total] $node_name ($label, port ${port}, host ${knife_host})"
  knife zero converge "name:${node_name}" -a knife_zero.host -p"${port}" -o "${RUNLIST}"
done

echo "Converged ${total} node(s) successfully."